The power structure usually includes nuclear power, hydropower, thermal power, wind power, photovoltaics, etc. Wind energy is inexhaustible and inexhaustible. A wind turbine is a device that converts wind energy into mechanical energy and then mechanical energy into electrical energy. As long as the wind speed reaches the breeze level of 3m/s, it can be equipped to generate electricity. From the outside, wind turbines seem to be "big windmills", so wind turbines are often called "big windmills".
The development of economy has made the society's electricity demand more and more vigorous, and electricity demand continues to grow. In 2019, my country's total power generation amounted to 7.14 trillion kWh. In 2020, the total power generation amount will reach 7.42 trillion kWh, an increase of 2.7% over the previous year. Although power generation is increasing year by year, thermal power generation is still the most important type of power generation in my country, accounting for about 70% of the electricity market. As a new type of energy source, wind power is clean and environmentally friendly. It has been vigorously developed and supported by the country. It has also been greatly developed in recent years, and more and more wind power generators have been put into use. In 2020, new installed capacity of 71.67 million kilowatts will be added, and wind power will generate 414.6 billion kWh, accounting for 5.6% of the country's total power generation. At the end of 2020, my country's cumulative installed capacity of wind power was 281 million kWh, accounting for 12.8% of the national installed capacity, ranking first in the world.
In 2021, as the price of coal continues to rise, the cost of purchasing coal for electricity from thermal power plants has doubled, resulting in large-scale losses for coal-fired power companies, and many thermal power companies are facing capital The risk of chain rupture, as the weather turns cold, it is imperative to increase the storage capacity of coal yards. For power plants with heating tasks, operating pressure is even more felt. On the contrary, although the total amount of wind power is not large, it still continues to make money. Everyone may know how wind power makes money, but many people may have misunderstandings or even misunderstandings about what makes money. So what is the reason why wind power makes money? The "big windmill" turns around and generates a few kilowatts of electricity,How much money can you make? I finally figured it out today.
The profit of any enterprise is the income minus the cost. Whether the enterprise makes money, from the big point of view, there are two influencing factors, one is income and the other is cost. Increasing revenue and reducing costs are also problems facing wind power.
Thermal power and wind power, although there is no difference to users, their "market value" is quite different.
Currently, thermal power is losing money. In addition to rising coal prices, it also has a lot to do with the low on-grid price of thermal power. According to the information obtained by the editor, the current on-grid tariff for thermal power is about 0.35 yuan per kilowatt-hour, and the on-grid tariff for wind power is about 0.6 yuan. Wind power is 0.25 yuan more than the on-grid tariff for thermal power. The marginal profit of wind power is generally 0.5 yuan per kilowatt-hour of electricity, while the current marginal profit of thermal power generation is below zero meters, in an embarrassing situation that the more power generation, the greater the loss.
In theory, as long as the marginal profit is greater than zero, power generation will not suffer a loss, loss-making companies will reduce losses, and profit-making companies will increase profits. Thermal power companies have no marginal profit, which means that power generation revenue is not enough for fixed-cost expenditures, such as workers’ wages, depreciation, and repair costs.
Generally speaking, the current wind power generation can make about 0.3 yuan per kilowatt-hour of electricity. On the other hand, thermal power generation has a loss of more than 0.1 yuan per kilowatt-hour.
If the price of wind power is also reduced to the on-grid price of thermal power, wind power is basically in a state of not making money or making a slight loss. From this perspective, wind power generation is not the management of wind power companies. How strong the ability is, it is caused by the policy. In the final analysis, the profitability of wind power generation and the loss of thermal power enterprises,They are all policy losses or profits. The on-grid price of wind power is high, and the on-grid price of thermal power is low. This may be a big deviation from the perception of many people.
At present, most of the main wind power generation models in our country are 2000KW. Of course, there are also more powerful generators. High-power generators are generally installed on the sea or the sea. The requirements for wind power are compared. high. Most of the wind turbines we usually see on land have a capacity of 2000KW. In the state of full power, they can generate 2000 degrees per hour, revolve 17 times per minute, 1020 revolutions per hour, and generate nearly 2 power per revolution. According to an estimate of 0.6 yuan per kilowatt-hour of electricity, the income for each revolution of the wind turbine is 1.2 yuan. Considering that the cost of wind power is about half of the income, the income of 1.2 yuan, 0.6 yuan is the profit. Taking into account the small profit of wind power, a 2000KW wind turbine will have an annual profit of about 1 million. Due to the "large quantity" of wind turbines, the annual profit of a wind power company is considerable. According to estimates, based on current income and costs, a wind power company will take about 10 years to recover its investment costs.
Although wind turbines rotate very slowly, they are very profitable. This is an indisputable fact. With the expansion of the installed capacity of wind power, it will be difficult to maintain the online price of wind power at a high level in the future. After the policy dividend disappears, whether wind power can still be as profitable as it is today is a question mark. What do you think about this? How long do you think the policy-based profitability of wind power can last?
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